A sensor ceramic polarization device and a safe polarization structure

Abstract

The invention discloses a sensor ceramic polarization device and a safety polarization structure, comprising a frame and a polarization mold conveyor belt, a contact ball, an electrode rod and a movable bottom cup located on the frame. The polarization mold conveyor belt is provided with a plurality of mold seats, polarization half cavities are provided on both sides of the mold seats, and when two adjacent mold seats are attached to each other, the polarization half cavities corresponding to the two mold seats are combined to form an independent polarization chamber without a cover and a bottom. The movable bottom cup is located below the conveying surface on the polarization mold conveyor belt, and the contact ball is located above the conveying surface on the polarization mold conveyor belt. The contact ball corresponds to the position of the movable bottom cup. The sensor ceramic polarization device of the invention can perform flowing continuous ceramic polarization processing with high processing efficiency. The safety polarization structure enables the electrified lower end of the electrode rod to be located inside the contact ball when not polarized, and has a high safety factor.

Description

Technical Field

[0001] The invention relates to the technical field of sensor ceramic processing equipment, and in particular to a sensor ceramic polarization device and a safety polarization structure. Background Art

[0002] The piezoelectric ceramics in sensor ceramics are a type of electronic ceramic materials with piezoelectric properties. The main difference from typical piezoelectric quartz crystals that do not contain ferroelectric components is that the crystal phases that constitute their main components are all ferroelectric grains. Since ceramics are polycrystalline aggregates with randomly oriented grains, the spontaneous polarization vectors of each ferroelectric grain are also chaotically oriented. In order for ceramics to exhibit macroscopic piezoelectric properties, it is necessary to place the piezoelectric ceramics under a strong DC electric field for polarization treatment after they are fired and the end faces are electroded, so that the originally chaotically oriented polarization vectors are preferentially oriented along the direction of the electric field. After the polarization treatment, the piezoelectric ceramics will retain a certain macroscopic residual polarization strength after the electric field is cancelled, so that the ceramics have certain piezoelectric properties.

[0003] General piezoelectric sensor ceramic polarization equipment is all independent box-type processing, that is, multiple ceramics are placed in a large polarization box for single-box processing. After the polarization is completed, the ceramics are taken out and then the next box is loaded and polarized. The processing efficiency is low, and the electrode rods are always exposed during processing, which is not very safe. Summary of the invention

[0004] The purpose of the present invention is to solve the problems of low processing efficiency and low safety factor of sensor ceramic polarization equipment in the prior art, and to propose a sensor ceramic polarization equipment and a safe polarization structure.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The sensor ceramic polarization equipment comprises a frame, on which a polarization mold conveyor belt, a contact ball, an electrode rod and a movable bottom cup are arranged.

[0007] Specifically, a plurality of mold bases are arranged on the polarization mold conveyor belt, and the mold bases are closely arranged. Polarization half-cavities are arranged on both sides of the mold base, and a single-sided support is arranged inside the polarization half-cavity. A high-temperature sealing strip is arranged on the edge of the polarization half-cavity. When two adjacent mold bases are attached to each other, the polarization half-cavities corresponding to the two mold bases are combined to form an independent polarization chamber without a cover and a bottom. At this time, the single-sided support inside the polarization chamber is combined in pairs to form a base for supporting ceramics.

[0008] Furthermore, the movable bottom cup is located below the upper conveying surface of the polarization mold conveyor belt, the polarization mold conveyor belt is provided with a through-hole at the bottom position of the polarization chamber, the movable bottom cup is slidably connected to the frame in the vertical direction, and the upper opening of the movable bottom cup corresponds to the shape of the lower opening of the polarization chamber. When the polarization chamber is above the movable bottom cup, the movable bottom cup moves upward, and when the upper end of the movable bottom cup passes through the through-hole and contacts the lower end of the polarization chamber, the bottom of the polarization chamber can be sealed.

[0009] Furthermore, an inlet pipe and an outlet pipe are provided at the bottom of the movable bottom cup. The inlet pipe is used to input the protective gas or liquid required for ceramic polarization into the polarization chamber, and the outlet pipe is used to guide the protective gas or liquid required for ceramic polarization out.

[0010] Preferably, a collecting tray is arranged behind the movable bottom cup, and when there is polarization protection liquid inside the polarization chamber, the collecting tray is used to collect the protection liquid dripping from the polarization chamber. The movable bottom cup is slidably connected to the collecting tray, and the collecting tray is fixedly connected to the frame.

[0011] Furthermore, the contact ball is located above the conveying surface on the polarization mold conveyor belt, and the contact ball corresponds to the position of the movable bottom cup. An elastic pressure rod for pressing the contact ball onto the mold base is arranged between the contact ball and the frame, and a compression spring is arranged in the middle of the elastic pressure rod, and the bottom of the contact ball corresponds to the shape of the upper opening of the polarization chamber. When the polarization chamber is below the contact ball, the elastic pressure rod can press the contact ball onto the upper opening of the polarization chamber to form a seal at the upper end of the polarization chamber. Combined with the sealing of the bottom of the polarization chamber by the movable bottom cup, the polarization chamber can be completely sealed.

[0012] Preferably, a buffer slope is provided on the upper surface of the mold base, and the top of the buffer slope is wavy. When the mold base moves due to the polarization mold conveyor belt, the buffer slope is used to assist the contact ball to leave or enter the top of the polarization chamber.

[0013] Furthermore, a safety polarization structure is provided between the contact ball and the electrode rod, and the safety polarization structure includes a sleeve and an electric inductor. The contact ball is provided with a through hole with a vertical axis, and the electrode rod can pass through the through hole. An electric inductor is provided on the inner wall of the through hole. When the contact ball is located at the top of the polarization chamber, the position of the electric inductor corresponds to that of the electrode rod, and the electric inductor is connected to a controller. The upper end of the electrode rod is slidably connected to the sleeve fixedly connected to the frame in the vertical direction, and a tension spring is provided between the upper end of the electrode rod and the sleeve. The tension spring can pull the electrode rod so that the lower end of the electrode rod is located inside the through hole of the contact ball.

[0014] Furthermore, a cavity is provided inside the upper end of the sleeve, and a cam and a slider located below the cam are provided in the cavity. The cam is rotatably connected to the sleeve via a shaft, and an electric control motor is provided at one end of the shaft, and the electric control motor is connected to a controller. The lower end of the slider fixes the upper end of the contact rod, the lower end of the contact rod contacts the upper end of the electrode rod, and the contact rod is slidably connected to the sleeve.

[0015] When the electrode rod is not working, the proximal end of the cam is close to the slider. At this time, the contact rod is just placed on the upper surface of the electrode rod, and the lower end of the electrode rod is located inside the through hole of the contact ball; when the contact ball is located at the top of the polarization chamber, the electrode rod needs to work, and the position of the inductor corresponds to that of the electrode rod. The inductor transmits an electrical signal to the controller. The controller controls the electric control motor corresponding to the cam to work, and the electric control motor drives the cam to rotate. The distal end of the cam is close to the slider, and the slider is pressed. The contact rod pushes the electrode rod downward, and the lower end of the electrode rod extends from the through hole of the contact ball. At this time, the electrode rod can contact the ceramic for polarization.

[0016] The controller is simultaneously connected to a switch of a high-voltage circuit. When the switch of the high-voltage circuit is disconnected, the controller controls the electric control motor corresponding to the cam to work, so that the cam rotates by an angle of 180° per time.

[0017] Preferably, in order to adapt to the thickness difference of the ceramic sheet, the cam includes a rotating part, a movable part and a contact telescopic rod, the rotating part is rotatably connected to the sleeve through the shaft, a contact telescopic rod is arranged between the rotating part and the movable part, the movable part is located at the far end of the cam, and a pressure sensor is arranged on the upper surface of the unilateral support member. When the far end of the cam contacts the slider, the contact telescopic rod can be extended, and the movable part can continue to push the slider downward, and when the pressure sensor on the upper surface of the unilateral support member senses the corresponding pressure value, the telescopic rod stops extending, and at this time the electrode rod is pressed above the ceramic sheet.

[0018] The sensor ceramic polarization device also includes a loading conveyor belt and a unloading conveyor belt, the loading conveyor belt is used for loading ceramics, and the unloading conveyor belt is used for unloading ceramics. The loading conveyor belt and the unloading conveyor belt are both located above the polarization mold conveyor belt, the loading conveyor belt is located in front of the contact ball, and the unloading conveyor belt is located behind the contact ball.

[0019] Specifically, a plurality of material picking assemblies are vertically arranged on the conveying wheel axes of the loading conveyor belt and the unloading conveyor belt, respectively. The material picking assemblies include a fixed block, a feeding telescopic rod and a suction nozzle. The upper end of the feeding telescopic rod is fixedly connected to the fixed block, and the fixed block is used to connect to the conveyor belt surface. A suction nozzle is arranged at the lower end of the feeding telescopic rod. The feeding telescopic rod is an electric feeding telescopic rod, and the suction nozzle is used to suck ceramics. The suction nozzle on the loading conveyor belt is used to take out ceramics from the polarization chamber, and the suction nozzle on the unloading conveyor belt is used to put ceramics into the polarization chamber. The working positions of the suction nozzles are respectively arranged above the polarization mold conveyor belt. The loading conveyor belt and the unloading conveyor belt can carry out continuous loading and unloading, so as to cooperate with the continuous polarization processing on the polarization mold conveyor belt.

[0020] The beneficial effects of the present invention are:

[0021] 1. The polarization mold conveyor belt in the sensor ceramic polarization equipment can drive the mold base to move, so that the mold base continuously circulates between the contact ball and the movable bottom cup to form a polarization chamber. The polarization chamber can form smooth loading and unloading, and perform flow-type continuous ceramic polarization processing with high processing efficiency;

[0022] 2. The ceramic polarization device of this sensor is equipped with a safe polarization structure. The electrically charged lower end of the electrode rod is located inside the contact ball, and the electrode rod will be pushed out only when the contact ball is located at the top of the polarization chamber, thus avoiding the situation where the electrode rod is not working and exposed, and has a high safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the ceramic polarization device of this sensor;

[0024] Figure 2 This is a top view of the polarization chamber of the ceramic polarization device of the sensor;

[0025] Figure 3 This is a schematic diagram of the structure of the safety polarization structure in the ceramic polarization device of this sensor;

[0026] Figure 4 This is a top view of the feeding conveyor belt of the ceramic polarization equipment of this sensor;

[0027] Figure 5 This is a schematic diagram of the structure of the cam in the safety polarization structure (the electrode rod does not work);

[0028] Figure 6 This is a schematic diagram of the structure of the cam in the safety polarization structure (electrode rod working).

[0029] In the figure: 1. frame; 2. polarization mold conveyor belt; 3. mold base; 4. buffer slope; 5. polarization half cavity; 6. single-sided support; 7. contact ball; 8. elastic pressure rod; 9. electrode rod; 10. sleeve; 11. loading conveyor belt; 12. unloading conveyor belt; 13. tension spring; 14. permanent magnet; 15. contact rod; 16. electromagnetic block; 17. movable bottom cup; 18. collecting plate; 19. inlet pipe; 20. outlet pipe; 21. connecting hole; 81. pressure spring; 111. fixing block; 112. feeding telescopic rod; 113. suction nozzle. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Reference Figure 1 The sensor ceramic polarization device comprises a frame 1, on which a polarization mold conveyor belt 2, a contact ball 7, an electrode rod 9 and a movable bottom cup 17 are arranged.

[0032] Specifically, a plurality of die holders 3 are arranged on the polarization die conveyor belt 2, and the die holders 3 are closely arranged. Figure 2 Polarization half-cavities 5 are arranged on both sides of the mold base 3, and a single-sided support member 6 is arranged inside the polarization half-cavity 5. A high-temperature sealing strip is arranged on the edge of the polarization half-cavity 5. When two adjacent mold bases 3 are attached to each other, the polarization half-cavities 5 corresponding to the two mold bases 3 are combined to form an independent polarization chamber without a cover and a bottom. At this time, the single-sided support members 6 inside the polarization chamber are combined in pairs to form a base for supporting ceramics.

[0033] Furthermore, the movable bottom cup 17 is located below the upper conveying surface of the polarization die conveyor belt 2, and the polarization die conveyor belt 2 is provided with a through-hole 21 at the bottom position of the polarization chamber. The movable bottom cup 17 is slidably connected to the frame 1 in the vertical direction, and the upper opening of the movable bottom cup 17 corresponds to the shape of the lower opening of the polarization chamber. When the polarization chamber is above the movable bottom cup 17, the movable bottom cup 17 moves upward, and when the upper end of the movable bottom cup 17 passes through the through-hole 21 and contacts the lower end of the polarization chamber, the bottom of the polarization chamber can be sealed.

[0034] Furthermore, an inlet pipe 19 and an outlet pipe 20 are provided at the bottom of the movable bottom cup 17. The inlet pipe 19 is used to input the protective gas or liquid required for ceramic polarization into the polarization chamber, and the outlet pipe 20 is used to discharge the protective gas or protective liquid required for ceramic polarization. The protective gas can be an inert gas, etc., and the protective liquid can be an insulating protective liquid such as methyl silicone oil.

[0035] Preferably, a collecting tray 18 is disposed behind the movable bottom cup 17. When there is polarization protection liquid inside the polarization chamber, the collecting tray 18 is used to collect the protection liquid that drips from the polarization chamber. The movable bottom cup 17 is slidably connected to the collecting tray 18, and the collecting tray 18 is fixedly connected to the frame 1.

[0036] Furthermore, the contact ball 7 is located above the conveying surface on the polarization mold conveyor belt 2, and the contact ball 7 corresponds to the position of the movable bottom cup 17. An elastic pressure rod 8 for pressing the contact ball 7 onto the mold base 3 is arranged between the contact ball 7 and the frame 1, and a compression spring 81 is arranged in the middle of the elastic pressure rod 8, and the bottom of the contact ball 7 corresponds to the shape of the upper opening of the polarization chamber. When the polarization chamber is below the contact ball 7, the elastic pressure rod 8 can press the contact ball 7 onto the upper opening of the polarization chamber to form a seal at the upper end of the polarization chamber. Combined with the seal of the movable bottom cup 17 on the bottom of the polarization chamber, the polarization chamber can be completely sealed.

[0037] In this embodiment, a buffer slope 4 is provided on the upper surface of the mold base 3, and the top of the buffer slope 4 is wavy. When the mold base 3 moves due to the polarization mold conveyor belt 2, the buffer slope 4 is used to assist the contact ball 7 to leave or enter the top of the polarization chamber.

[0038] For further reference, Figure 3 A safety polarization structure is arranged between the contact ball 7 and the electrode rod 9. The safety polarization structure includes a sleeve 10 and an inductor 71. One end of the inductor 71 is connected to electricity. The induction principle of the inductor 71 refers to the principle of an electric test pen. The contact ball 7 is provided with a through hole with a vertical axis, and the electrode rod 9 can pass through the through hole. The inductor 71 is arranged on the inner wall of the through hole. When the contact ball 7 is located at the top of the polarization chamber, the inductor 71 corresponds to the position of the electrode rod 9, and the inductor 71 is connected to the controller. The upper end of the electrode rod 9 is slidably connected to the sleeve 10 fixedly connected to the frame 1 in the vertical direction. A tension spring 13 is arranged between the upper end of the electrode rod 9 and the sleeve 10. The tension spring 13 can pull the electrode rod 9 so that the lower end of the electrode rod 9 is located inside the through hole of the contact ball 7.

[0039] Furthermore, a cavity is provided inside the upper end of the sleeve 10, in which a cam 14 and a slider 16 located below the cam 14 are provided. The cam 4 is rotatably connected to the sleeve 10 via a shaft, and an electric control motor is provided at one end of the shaft, and the electric control motor is connected to a controller. The lower end of the slider 16 fixes the upper end of the contact rod 15, and the lower end of the contact rod 15 contacts the upper end of the electrode rod 9, and the contact rod 15 is slidably connected to the sleeve 10.

[0040] When the electrode rod is not working, the proximal end of the cam 14 is close to the slider 16. At this time, the contact rod 15 is just placed on the upper surface of the electrode rod 9, and the lower end of the electrode rod is located inside the through hole of the contact ball; when the contact ball 7 is located at the top of the polarization chamber, the electrode rod needs to work, and the inductor 71 corresponds to the position of the electrode rod 9. The inductor 71 transmits an electrical signal to the controller. The controller controls the electric control motor corresponding to the cam to work, and the electric control motor drives the cam 14 to rotate. The distal end of the cam 14 is close to the slider 16, and the slider 16 is pressed. The contact rod 15 pushes the electrode rod 9 downward, and the lower end of the electrode rod 9 extends out of the through hole of the contact ball 7. At this time, the electrode rod 9 can contact the ceramic for polarization.

[0041] The controller is simultaneously connected to a switch of a high-voltage circuit. When the switch of the high-voltage circuit is disconnected, the controller controls the electric control motor corresponding to the cam to work, so that the cam rotates by an angle of 180° per time.

[0042] In this embodiment, reference Figure 5 and Figure 6 In order to adapt to the thickness difference of the ceramic sheet, the cam 14 includes a rotating part 141, a movable part 142 and a contact telescopic rod 143. The rotating part 141 is rotatably connected to the sleeve 10 through the shaft, and the contact telescopic rod 143 is arranged between the rotating part 141 and the movable part 142. The movable part 142 is located at the far end of the cam 14. A pressure sensor is arranged on the upper surface of the single-sided support member 6. Figure 6 When the distal end of the cam 14 contacts the slider 16, the contact telescopic rod 143 can be extended, and the movable part 142 can continue to push the slider 16 downward. When the pressure sensor on the upper surface of the unilateral support member 6 senses the corresponding pressure value, the telescopic rod 143 stops extending. At this time, the electrode rod 9 is pressed above the ceramic sheet.

[0043] The sensor ceramic polarization device and safety polarization structure also include a loading conveyor belt 11 and a unloading conveyor belt 12. The loading conveyor belt 11 is used for loading ceramics, and the unloading conveyor belt 12 is used for unloading ceramics. The loading conveyor belt 11 and the unloading conveyor belt 12 are both located above the polarization mold conveyor belt 2. The loading conveyor belt 11 is located in front of the contact ball 7, and the unloading conveyor belt 12 is located behind the contact ball 7.

[0044] refer to Figure 5, the conveying wheel axes of the loading conveyor belt 11 and the unloading conveyor belt 12 are vertically arranged with a plurality of material picking components on the loading conveyor belt 11 and the unloading conveyor belt 12, respectively, the material picking components include a fixed block 111, a feeding telescopic rod 112 and a suction nozzle 113, the upper end of the feeding telescopic rod 112 is fixedly connected to the fixed block 111, the fixed block 111 is used to connect the conveyor belt surface, and the lower end of the feeding telescopic rod 112 is provided with a suction nozzle 113. The feeding telescopic rod 112 is an electric feeding telescopic rod, and the suction nozzle 113 is used to suck ceramics. The suction nozzle 113 on the loading conveyor belt 11 is used to take out ceramics from the polarization chamber, and the suction nozzle 113 on the unloading conveyor belt 12 is used to put ceramics into the polarization chamber. The loading conveyor belt 11 and the unloading conveyor belt 12 can carry out continuous loading and unloading, and are used to cooperate with the continuous polarization processing on the polarization mold conveyor belt 2.

[0045] The working process of this sensor ceramic polarization device and safety polarization structure is:

[0046] Step 1: The mold base 3 reaches the upper horizontal conveying surface of the polarizing mold conveyor belt 2 under the conveyance of the polarizing mold conveyor belt 2, and the adjacent mold bases 3 are attached to each other, and the polarizing half-cavities 5 corresponding to the two mold bases 3 are combined to form an independent polarizing chamber without a cover and a bottom. At this time, the single-sided support members 6 inside the polarizing chamber are combined in pairs to form a base for supporting ceramics;

[0047] The electrode rod 9 is energized but does not work. The proximal end of the cam 14 is close to the slider 16. At this time, the contact rod 15 is just placed on the upper surface of the electrode rod 9, and the lower end of the electrode rod is located inside the through hole of the contact ball. The position of the electric inductor 71 does not correspond to that of the electrode rod 9; the movable bottom cup 17 is located below the polarization mold conveyor belt 2; the contact ball 7 moves along the buffer slope 4.

[0048] Step 2: The suction nozzle 113 of the feeding conveyor belt 11 sucks the ceramic sheet from the workpiece box, and the suction nozzle for sucking the ceramic sheet waits at the working position above the polarization mold conveyor belt 2. When the polarization half cavity 5 passes through the suction nozzle 113 of the feeding conveyor belt 11, the feeding telescopic rod 112 extends, and the suction nozzle 113 releases the ceramic sheet. The ceramic sheet is placed on the base formed by the single-sided support member 6, and the loading of the ceramic sheet is completed;

[0049] Step 3: When the polarization chamber is also above the movable bottom cup 17, the polarization mold conveyor belt 2 stops conveying, and the movable bottom cup 17 moves upward. When the upper end of the movable bottom cup 17 passes through the connecting hole 21 and contacts the lower end of the polarization chamber, the bottom of the polarization chamber can be sealed;

[0050] At the same time, when the contact ball 7 is located at the top of the polarization chamber, the elastic pressure rod 8 can press the contact ball 7 to the upper opening of the polarization chamber to form a seal on the upper end of the polarization chamber. Combined with the seal of the bottom of the polarization chamber by the movable bottom cup 17, the polarization chamber can be completely sealed. The inlet pipe 19 inputs the protective liquid required for ceramic polarization into the interior of the polarization chamber, and the liquid immerses the ceramic sheet;

[0051] Moreover, the electric inductor 71 corresponds to the position of the electrode rod 9, and the electric inductor 71 transmits an electric signal to the controller, and the controller controls the electric control motor corresponding to the cam to work, and the electric control motor drives the cam 14 to rotate 180 degrees, and the far end of the cam 14 is close to the slider 16, and the slider 16 is pressed, and the contact rod 15 pushes the electrode rod 9 downward, and the lower end of the electrode rod 9 extends out from the through hole of the contact ball 7, and the electrode rod 9 contacts the ceramic to polarize the ceramic;

[0052] Step 4: After the ceramic sheet is polarized, the high-voltage circuit switch corresponding to the electrode rod 9 is disconnected, and the electronically controlled motor drives the cam 14 to rotate 180°. The proximal end of the cam 14 is close to the slider 16. Under the pull of the tension spring 13, the contact rod 15 moves upward. At this time, the contact rod 15 leaves the electrode rod 9, and the lower end of the electrode rod 9 retracts into the through hole of the contact ball 7;

[0053] The outlet pipe 20 discharges the protective liquid, and the movable bottom cup 17 moves downward and leaves the lower end of the polarization chamber;

[0054] Step 5: The polarization mode conveyor belt 2 continues the conveying action and returns to step 1;

[0055] While the step 2 is being performed, the suction nozzle 113 in the working position of the unloading conveyor belt 12 can suck out the polarized ceramic sheet and take it to the next process through the unloading conveyor belt 12 to realize continuous processing.

[0056] The sensor ceramic polarization equipment and the safety polarization structure in this embodiment can perform flow-type continuous ceramic polarization processing, with high processing efficiency and high safety factor.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sensor ceramic polarization device, characterized in that: It comprises a frame (1) and a polarization mold conveyor belt (2), a contact ball (7), an electrode rod (9) and a movable bottom cup (17) located on the frame (1); a plurality of mold bases (3) are arranged on the polarization mold conveyor belt (2); polarization half cavities (5) are arranged on both sides of the mold base (3); a single-sided support member (6) is arranged inside the polarization half cavity (5); when two adjacent mold bases (3) are attached to each other, the polarization half cavities (5) corresponding to the two mold bases (3) are combined to form an independent polarization chamber without a cover and a bottom; and a connecting hole (21) is arranged through the bottom of the polarization chamber on the polarization mold conveyor belt (2); The contact ball (7) is located above the upper conveying surface of the polarization mold conveyor belt (2), and an elastic pressure rod (8) for pressing the contact ball (7) onto the mold base (3) is arranged between the contact ball (7) and the frame (1), and the bottom of the contact ball (7) corresponds to the shape of the upper opening of the polarization chamber; A safety polarization structure is arranged between the contact ball (7) and the electrode rod (9), the safety polarization structure comprising a sleeve (10) and an electric inductor (71); the contact ball (7) is provided with a through hole for accommodating the electrode rod (9) to pass through, the inner wall of the through hole is provided with an electric inductor (71); the upper end of the electrode rod (9) is slidably connected to the sleeve (10) fixedly connected to the frame (1) in a vertical direction; a tension spring (13) is arranged between the upper end of the electrode rod (9) and the sleeve (10); a cavity is arranged inside the upper end of the sleeve (10); a cam (14) and a slider (16) located below the cam (14) are arranged in the cavity; the lower end of the slider (16) is fixed to the upper end of the contact rod (15); the lower end of the contact rod (15) contacts the upper end of the electrode rod (9); and the contact rod (15) is slidably connected to the sleeve (10).

2. A sensor ceramic polarization device according to claim 1, characterized in that: The movable bottom cup (17) is located below the upper conveying surface of the polarization mold conveyor belt (2), the movable bottom cup (17) is slidably connected to the frame (1) in the vertical direction, the upper opening of the movable bottom cup (17) corresponds to the shape of the lower opening of the polarization chamber, and the position of the movable bottom cup (17) corresponds to that of the contact ball (7).

3. A sensor ceramic polarization device according to claim 1 or 2, characterized in that: The cam (14) comprises a rotating portion (141), a movable portion (142) and a contact telescopic rod (143); the rotating portion (141) is rotatably connected to the sleeve (10) via a shaft; the contact telescopic rod (143) is arranged between the rotating portion (141) and the movable portion (142); and the movable portion (142) is located at the far end of the cam (14).

4. A sensor ceramic polarization device according to claim 3, characterized in that: The upper surface of the mold base (3) is provided with a buffer slope (4) for assisting the contact ball (7) to leave or enter the top of the polarization chamber.

5. A sensor ceramic polarization device according to claim 1, characterized in that: It also includes a loading conveyor belt (11) and a unloading conveyor belt (12), wherein the loading conveyor belt (11) and the unloading conveyor belt (12) are both located above the polarization mold conveyor belt (2), the loading conveyor belt (11) is located in front of the contact ball (7), and the unloading conveyor belt (12) is located behind the contact ball (7).

6. A sensor ceramic polarization device according to claim 5, characterized in that: The conveying wheel axes of the loading conveyor belt (11) and the unloading conveyor belt (12) are arranged vertically; The loading conveyor belt (11) and the unloading conveyor belt (12) are respectively provided with a plurality of material taking components, each comprising a fixed block (111), a feeding telescopic rod (112) and a suction nozzle (113); the upper end of the feeding telescopic rod (112) is fixedly connected to the fixed block (111); the fixed block (111) is used to connect to the conveyor belt surface; and the suction nozzle (113) is arranged at the lower end of the feeding telescopic rod (112).

7. A sensor ceramic polarization device according to claim 2, characterized in that: An inlet pipe (19) and an outlet pipe (20) are provided at the bottom of the movable bottom cup (17).

8. A sensor ceramic polarization device according to claim 6, characterized in that: A collecting plate (18) is arranged behind the movable bottom cup (17), the movable bottom cup (17) is slidably connected to the collecting plate (18), and the collecting plate (18) is fixedly connected to the frame (1).

9. A sensor ceramic polarization device according to claim 1, characterized in that: When the contact ball (7) is located at the top of the polarization chamber, the electric inductor (71) corresponds to the position of the electrode rod (9).

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